Efficient License Management Based on Smart Contracts Between Software Vendors and Service Providers

2019 ◽  
Author(s):  
Federico Magnanini ◽  
Luca Ferretti ◽  
Michele Colajanni
Keyword(s):  
Service Providers ◽  
Smart Contracts ◽  
License Management

scholarly journals Blockchain-based Multi-Purpose Authentication Method for Anonymity and Privacy

2019 ◽  
Vol 8 (2S6) ◽  
pp. 409-414 ◽  
Keyword(s):  
Service Provider ◽  
Service Providers ◽  
Hash Functions ◽  
Industrial Sector ◽  
Public Key ◽  
Smart Contracts ◽  
Application Technology ◽  
Relevant Study ◽  
Elastic Curve ◽  
Smart Contract

Various applications using smart contract, a leading application technology of blockchain, are being rapidly introduced to the industrial sector. As a result, services in various fields are actively being developed. Currently, most of the services are offered on a variety of platforms, not blockchain-based. If these services are linked to prepaid features that provide anonymity in smart contracts, a more diverse service scenario could be created. In this paper, we propose scenarios that provide certification for various purposes based on smart contracts. It provides a scenario that provides the privacy of the contract signed by the customer while retaining the anonymity provided by blockchain. Smart contracts register keys that do not give a clue to guess the encoding keys and deliver hash functions of the child keys that change each time with authentication parameters.In addition, the master seed that can generate these authentication parameters is designed to be kept only by the user and the service provider to be able to verify them. It is proposed by considering both a single service provider transaction and a smart contract authentication model that is shared with a large number of service providers. To generate these child keys, we proposed a mechanism to use the method of generation of child keys based on the Elastic Curve Cryptography public-key method. Various attack scenarios were analyzed to complement the scenario and the efficiency of the proposed mechanism was analyzed. In addition, differences and excellence were compared by organizing scenarios that had the same purpose as scenarios in the relevant study

scholarly journals CrowdMed-II: a blockchain-based framework for efficient consent management in health data sharing

2022 ◽  
Author(s):  
Chaochen Hu ◽  
Chao Li ◽  
Guigang Zhang ◽  
Zhiwei Lei ◽  
Mira Shah ◽  
...  
Keyword(s):  
Data Sharing ◽  
Service Providers ◽  
Heterogeneous Data ◽  
Health Data ◽  
Smart Contracts ◽  
Management Framework ◽  
Execution Costs ◽  
Traditional Health ◽  
Centralized Management ◽  
Health Service Providers

AbstractThe healthcare industry faces serious problems with health data. Firstly, health data is fragmented and its quality needs to be improved. Data fragmentation means that it is difficult to integrate the patient data stored by multiple health service providers. The quality of these heterogeneous data also needs to be improved for better utilization. Secondly, data sharing among patients, healthcare service providers and medical researchers is inadequate. Thirdly, while sharing health data, patients’ right to privacy must be protected, and patients should have authority over who can access their data. In traditional health data sharing system, because of centralized management, data can easily be stolen, manipulated. These systems also ignore patient’s authority and privacy. Researchers have proposed some blockchain-based health data sharing solutions where blockchain is used for consensus management. Blockchain enables multiple parties who do not fully trust each other to exchange their data. However, the practice of smart contracts supporting these solutions has not been studied in detail. We propose CrowdMed-II, a health data management framework based on blockchain, which could address the above-mentioned problems of health data. We study the design of major smart contracts in our framework and propose two smart contract structures. We also introduce a novel search contract for searching patients in the framework. We evaluate their efficiency based on the execution costs on Ethereum. Our design improves on those previously proposed, lowering the computational costs of the framework. This allows the framework to operate at scale and is more feasible for widespread adoption.

16. Electronic contracts

2019 ◽  
pp. 411-437
Author(s):  
Andrew Murray
Keyword(s):  
Electronic Commerce ◽  
Service Providers ◽  
Contract Law ◽  
Smart Contracts ◽  
Electronic Signatures ◽  
Payment Methods ◽  
Electronic Contracts ◽  
The Law

This chapter examines contracts in electronic commerce and their implications for the traditional contract law and the law relating to payment and payment methods. It first looks at the rules for the formation of informal electronic contracts and the regulation of offer and acceptance, focusing on Articles 9–11 of the European Union’s Electronic Commerce Directive. The chapter then considers the question of when acceptance is effectively communicated to the offeror, the terms of the contract, and their enforcement as well as evaluating formal contracts and discussing their formation and terms. A focus for this chapter is the evolving laws on electronic signatures, the role of qualified trust service providers and how electronic signatures are formalized. The chapter concludes with a discussion of the evolving area of smart contracts: their design, formation, and what the role of the law is in relation to these self-enforcing agreements.

Industry Use Cases on Blockchain Technology

2021 ◽  
pp. 248-276
Author(s):  
Daniel Schönle ◽  
Kevin Wallis ◽  
Jan Stodt ◽  
Christoph Reich ◽  
Dominik Welte ◽  
...  
Keyword(s):  
Business Models ◽  
Business Processes ◽  
Service Providers ◽  
Use Cases ◽  
Smart Contracts ◽  
Blockchain Technology ◽  
Data Control ◽  
Chain Of Trust ◽  
A Chain ◽  
Maintenance Process

Digital transformation strengthens the interconnection of companies in order to develop optimized and better customized, cross-company business models. These models require secure, reliable, and traceable evidence and monitoring of contractually agreed information to gain trust between stakeholders. Blockchain technology using smart contracts allows the industry to establish trust and automate cross-company business processes without the risk of losing data control. A typical cross-company industry use case is equipment maintenance. Machine manufacturers and service providers offer maintenance for their machines and tools in order to achieve high availability at low costs. The aim of this chapter is to demonstrate how maintenance use cases are attempted by utilizing hyperledger fabric for building a chain of trust by hardened evidence logging of the maintenance process to achieve legal certainty. Contracts are digitized into smart contracts automating business that increase the security and mitigate the error-proneness of the business processes.

BlockMed: Blockchain-based Electronic Consent Management for Secure and Privacy-Protected Healthcare Interoperability (Preprint)

2020 ◽  
Author(s):  
Arghya Kusum Das ◽  
Ajanta Das
Keyword(s):  
Data Analysis ◽  
Health Information ◽  
Information Exchange ◽  
Management System ◽  
Capital Investment ◽  
Service Providers ◽  
Care Service ◽  
Third Party ◽  
Smart Contracts ◽  
Report Generation

BACKGROUND An electronic consent management system can improve the care service significantly by balancing the risks to patient privacy with the benefits of health information exchange and interoperability. Patients leave their health information on multiple providers’ silo. A holistic report and privacy-preserved analysis can help to expedite several medical services including both personal- and community-care. Furthermore, access to consent-based, anonymous health records can accelerate innovation in health services and researches. OBJECTIVE We propose BlockMed, a proof-of-concept (POC) for a novel, cost-effective e-consent management system. Given proper consent, BlockMed can query the patient’s information fractured over multiple healthcare-providers’ silo make it available to the patient. At the same time, BlockMed also enables privacy-preserved data analysis by third-party service providers in the same system. Leveraging the unique and anonymous Ethereum id, BlockMed masks out the patient’s original identification in the provider’s secured local silo and abstract away any complication caused by changes in the identification information on multiple silos. METHODS The core functionalities of BlockMed are developed with a set of smart contracts on Ethereum blockchain. To develop those smart contracts, we have divided the potential users into three different groups such as, patient, provider, and third-party analyzer. Users are identified by their anonymous Ethereum id and need to sign the consent to access healthcare data. After signing, BlockMed can automatically initiate the queries to fetch data from providers’ data warehouse, enables analysis on any third-party service provider’s infrastructure if required, and finally, presents a report to the intended users including the patient. The signed consents stay on Ethereum forever leaving a permanent audit trail to uphold the integrity of the system. RESULTS We evaluated our system in terms of its functionality and cost. Our decentralized application (DApp) can not only query the data from multiple providers' silo but also enable third-party report generation with proper consent and privacy. Masking out the actual patient identification information under anonymous Ethereum ID our DApp can operate irrespective of geographical boundaries. Our cost analysis shows that the adoption of decentralized blockchain-based technology can avoid huge amount of capital investment required for similar services using centralized infrastructure such as AWS cloud. CONCLUSIONS Many prior studies have already confirmed that blockchain can improve and expedite data sharing among different providers. Our POC, BlockMed takes it to one step ahead where the data analysis is also integrated. We prove the efficacy of BlockMed by evaluating its functionalities qualitatively as well as its comparing its cost with an alternative cloud-based architecture.

Perceptions of a Collaborative Professional Learning Program: Seeing the “Bigger Picture”

2020 ◽  
Vol 5 (1) ◽  
pp. 290-303
Author(s):  
P. Charlie Buckley ◽  
Kimberly A. Murza ◽  
Tami Cassel
Keyword(s):  
Data Analysis ◽  
Professional Learning ◽  
Social Communication ◽  
Special Educators ◽  
Service Providers ◽  
Integrative Approach ◽  
Theory Approach ◽  
Learning Program ◽  
Speech Language Pathologists ◽  
Related Service

Purpose The purpose of this study was to explore the perceptions of special education practitioners (i.e., speech-language pathologists, special educators, para-educators, and other related service providers) on their role as communication partners after participation in the Social Communication and Engagement Triad (Buckley et al., 2015 ) yearlong professional learning program. Method A qualitative approach using interviews and purposeful sampling was used. A total of 22 participants who completed participation in either Year 1 or Year 2 of the program were interviewed. Participants were speech-language pathologists, special educators, para-educators, and other related service providers. Using a grounded theory approach (Glaser & Strauss, 1967 ) to data analysis, open, axial, and selective coding procedures were followed. Results Three themes emerged from the data analysis and included engagement as the goal, role as a communication partner, and importance of collaboration. Conclusions Findings supported the notion that educators see the value of an integrative approach to service delivery, supporting students' social communication and engagement across the school day but also recognizing the challenges they face in making this a reality.

Talking Across Cultures in Early Intervention: Finding Common Ground to Meet Children's Communication Needs

2009 ◽  
Vol 16 (3) ◽  
pp. 79-85 ◽  
Author(s):  
Elizabeth D. Peña ◽  
Christine Fiestas
Keyword(s):  
Early Intervention ◽  
Cultural Values ◽  
Common Ground ◽  
Service Providers ◽  
Cultural Orientation ◽  
Speech Language Pathology ◽  
Provider Perspectives ◽  
Language Pathology ◽  
Communication Needs ◽  
Caregiver Role

Abstract In this paper, we explore cultural values and expectations that might vary among different groups. Using the collectivist-individualist framework, we discuss differences in beliefs about the caregiver role in teaching and interacting with young children. Differences in these beliefs can lead to dissatisfaction with services on the part of caregivers and with frustration in service delivery on the part of service providers. We propose that variation in caregiver and service provider perspectives arise from cultural values, some of which are instilled through our own training as speech-language pathologists. Understanding where these differences in cultural orientation originate can help to bridge these differences. These can lead to positive adaptations in the ways that speech-language pathology services are provided within an early intervention setting that will contribute to effective intervention.

Systems of Oppression in Geriatric Clinical Service Delivery

2021 ◽  
pp. 1-3
Author(s):  
Diane L. Kendall
Keyword(s):  
Higher Education ◽  
Service Delivery ◽  
Clinical Setting ◽  
Service Providers ◽  
Hard Work ◽  
Clinical Service ◽  
Meaningful Change ◽  
Important Work ◽  
Speech Language Pathologists ◽  
Medical Institutions

Purpose The purpose of this article was to extend the concepts of systems of oppression in higher education to the clinical setting where communication and swallowing services are delivered to geriatric persons, and to begin a conversation as to how clinicians can disrupt oppression in their workplace. Conclusions As clinical service providers to geriatric persons, it is imperative to understand systems of oppression to affect meaningful change. As trained speech-language pathologists and audiologists, we hold power and privilege in the medical institutions in which we work and are therefore obligated to do the hard work. Suggestions offered in this article are only the start of this important work.

Practioner Reflection That Enhances Interprofessional Collaborative Practices for Serving Children Who Are Deaf/Hard-of-Hearing

2017 ◽  
Vol 2 (9) ◽  
pp. 3-9 ◽  
Author(s):  
Kristina M. Blaiser ◽  
Mary Ellen Nevins
Keyword(s):  
Young Children ◽  
Professional Practice ◽  
Hard Of Hearing ◽  
Service Providers ◽  
Interprofessional Collaboration ◽  
The Self ◽  
Self Awareness ◽  
Collaborative Practices ◽  
Interprofessional Teams ◽  
Client Care

Interprofessional collaboration is essential to maximize outcomes of young children who are Deaf or Hard-of-Hearing (DHH). Speech-language pathologists, audiologists, educators, developmental therapists, and parents need to work together to ensure the child's hearing technology is fit appropriately to maximize performance in the various communication settings the child encounters. However, although interprofessional collaboration is a key concept in communication sciences and disorders, there is often a disconnect between what is regarded as best professional practice and the self-work needed to put true collaboration into practice. This paper offers practical tools, processes, and suggestions for service providers related to the self-awareness that is often required (yet seldom acknowledged) to create interprofessional teams with the dispositions and behaviors that enhance patient/client care.

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